Emanuel obeendobfee



(No Model.)

E. OBERNDORPER.

Spring Bed Bottom. l No. 239,829. Patented April 5,1881.

N. PETERS, PHOTO-LITHOGRAPMER. WASHINGTON. D. C,

'A UNITED STATES PATENT OFFICE.

EMANUEL oBEENDoEEEE, or NEw HAVEN, ooNN., AssieNoE ro THE NEW HAVEN EoLL-UP SEEING BED COMPANY, E sAME rL-AoE.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 239,829, dated April 5, 1881.

Application tiled February 23, 1881. (No model.)

To all whom it may concern:

Be it known that I, EMANUEL OBEENDOE- FER, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Spring Bed-Bottoms; and I do hereby declare the following, when y taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in- .l

Figure 1, a top view; Fig. 2, end view; Fig. 3, top view of the transverse tie enlarged; Fig. 4, longitudinal section of the same; Fig. 5, transverse section through the spring-coupling; Fig. 6, end view of the bed-bottom in its rolled condition.

This invention relates to an improvement in that class of spring-beds which are composed of a series of longitudinal parallel slats connected by transverse iiexible bars at the end, and having coiled conical springs arranged on the said longitudinal bars, connected together so that the bed may be rolled into a small space, as for transportation.

`In-the usual construction the springs at the top are simply connected by fiexible connections, as short pieces of chain or straps, as shown in Fig. l; but in practice it is found that this does not give the requisite support to the springs. They tip to the right and left, or toward the head and foot, so that frequently the springs break down.

The object of this invention is to give a support to the outside springs to hold them in their position, and thereby support the springs to which they are connected, and yet permit the bed-bottom to be rolled 5 and it consists in B are also of metal and flexible or elastic, so that the bottom may be rolled one side toward the other, and the ends of the transverse slats secured together, as seen in Fig. 6. This brings the bed into a contracted state, for transportation or`other purposes. While the side bars, D, hold the side springs together there is nothing to prevent the springs between them from being drawn toward each other longitudinally of the bottom. If bars like the bars D were placed across the ends and permanently attached to the side bars and the springs connected to those end bars, the,

longitudinal displacement ofthe springs would be avoided, but the bottom could not be rolled. To apply such end bars and yet permit the rolling of the bed, I take a strip of elastic or flexible metal and form a bar,E, for each end, and pivot each to the opposite side bar, as at c and e, Fig. l. At the opposite end of the bars E, I make a perforation, b, to set over the stud d attached to the side bars. The stud dis provided with a head longer than the perforation b. A tongue, f, is cut from the perforation b inward, as seen in Fig. 3, which, partaking of the elasticity of the bar E, may be raised, as seen in broken lines, Fig. 4, so as to permit the enlarged head of the studi d to pass up through the perforationb, and then when the tongue f falls back it draws the perforation beneath the head and locks the bar to the stud.

To disengage the end bars raise the tongue f, as indicated in broken lines, Fig. 4; then lift the bar from the stud, and when so lifted the end bars are turned on their pivots e longitudinally onto their respective side bars, D, as seen in Fig. 1 so that when the said end bars E are turned to connect with the opposite side bars, as seen in Fig. l, they so unite the side bars that they sustain each other; but when turned onto their respective side bars the bedbottom may be rolled the same as it' the end bars were not present. The sprin gs at the ends intermediate between the said bars are detachably connected to their respective end bars by a device corresponding tothe headed stud d and tongue f, at the sidethat is to say, a coupling, h, (see Fig. 5,) is made fast to each spring. This coupling, having a head corre- IOO sponding to the head of the stud, is introduced through a perforation, t, in the end bar, and the tongue n drops in behind it, so that it becomes interlocked with the end bar; and when the end bar is to be detached, as before described, the tongue is raised, as seen in broken lines, Fig. 4, and the coupling 7i slipped from its connection With-the bar.

The connection of the end springs with the end bar holds the end springs in their vertical position and prevents their tipping toward the center, and because of their connection with the intermediate springs holds such intermediate springs in their vertical position when the end bars are turned onto the side bars, as before described, so as to bring the extreme ends of the transverse slats together, in which ,condition they are interlocked in the usual manner, as seen in Fig. 6.

While I prefer the detachable connection described, between the end bars and side bars side bar, and with theiut-ermediate end springs,

substantially as and for the purpose described.

EMANUEL OBERNDORFER.

Witnesses:

J. H. SHUMWAY, L. D. ROGERS. 

